Japan · 1991–2020 normal

Haramachi in
September.

Typical September weather in Haramachi: 29°C by day, 20.6°C at night, 160 mm of rain over 9 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high29°C
Typical low20.6°C
Rain160 mm
Wet days9

Comfort score 51 this month (May leads the year at 82). Daylight is calculated as 12 h 20 from latitude 33.77°. Open-water sea temperature is 25.1°C (19 km from the place centre).

Event window

Warm sea in September

The nearest open-water NOAA OISST 1991–2020 cell averages 25.1°C in September. A sheltered bay can run warmer than that open-water cell.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 1926150
NOAA station
JA000047887 · MATSUYAMA
Station distance
8.9 km from the place centre
Coverage
Good coverage · 18 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.